Kopf, Achim J.
MARUM – Zentrum für Marine Umweltwissenschaften,
Germany
2025 Rank: 107175
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1542 out of 103460 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 107175 | 115502 |
| Total Cites | 357 | 398 |
| H-index | 7 | 7 |
| Hm-index | 4 | 4 |
| Number of Single Authored Papers | 9 | 9 |
| Total Cites to Single Authored Papers | 42 | 42 |
| Number of Single+First Authored Papers | 33 | 33 |
| Total Cites to Single+First Authored Papers | 72 | 73 |
| Number of Single+First+Last Authored Papers | 127 | 127 |
| Total Cites to Single+First+Last Authored Papers | 226 | 244 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 272 | 291 |
| Ratio of Total Citations to Distinct Citing Papers | 1.31 | 1.37 |
| Self-Citation Percentage |
10.30%
|
|
Kopf, Achim J.
Universität Bremen,
Germany
2024 Rank: 76296
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1089 out of 98126 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 76296 | 63434 |
| Total Cites | 419 | 475 |
| H-index | 8 | 9 |
| Hm-index | 4 | 5 |
| Number of Single Authored Papers | 9 | 9 |
| Total Cites to Single Authored Papers | 50 | 51 |
| Number of Single+First Authored Papers | 32 | 32 |
| Total Cites to Single+First Authored Papers | 83 | 88 |
| Number of Single+First+Last Authored Papers | 125 | 125 |
| Total Cites to Single+First+Last Authored Papers | 250 | 284 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 282 | 298 |
| Ratio of Total Citations to Distinct Citing Papers | 1.49 | 1.59 |
| Self-Citation Percentage |
11.79%
|
|
Kopf, Achim J.
Universität Bremen,
Germany
2023 Rank: 90446
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1446 out of 92230 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 90446 | 80676 |
| Total Cites | 345 | 444 |
| H-index | 8 | 9 |
| Hm-index | 5 | 5 |
| Number of Single Authored Papers | 9 | 9 |
| Total Cites to Single Authored Papers | 41 | 41 |
| Number of Single+First Authored Papers | 32 | 32 |
| Total Cites to Single+First Authored Papers | 66 | 66 |
| Number of Single+First+Last Authored Papers | 124 | 124 |
| Total Cites to Single+First+Last Authored Papers | 200 | 252 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 264 | 300 |
| Ratio of Total Citations to Distinct Citing Papers | 1.31 | 1.48 |
| Self-Citation Percentage |
22.30%
|
|
Kopf, Achim J.
MARUM – Zentrum für Marine Umweltwissenschaften,
Germany
2022 Rank: 69052
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1176 out of 87916 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 69052 | 61226 |
| Total Cites | 353 | 428 |
| H-index | 8 | 9 |
| Hm-index | 4 | 5 |
| Number of Single Authored Papers | 8 | 8 |
| Total Cites to Single Authored Papers | 53 | 53 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 94 | 97 |
| Number of Single+First+Last Authored Papers | 107 | 107 |
| Total Cites to Single+First+Last Authored Papers | 227 | 265 |
| Composite Score | 2 | 2 |
| Number of Distinct Citing Papers | 263 | 295 |
| Ratio of Total Citations to Distinct Citing Papers | 1.34 | 1.45 |
| Self-Citation Percentage |
17.52%
|
|
Kopf, Achim J.
MARUM – Zentrum für Marine Umweltwissenschaften,
Germany
2021 Rank: 72989
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Earth & Environmental Sciences
SubField 1:
Geochemistry & Geophysics
SubField 2:
Oceanography
Rank in SubField 1: 1337 out of 81218 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 72989 | 61028 |
| Total Cites | 516 | 649 |
| H-index | 10 | 12 |
| Hm-index | 5 | 6 |
| Number of Single Authored Papers | 8 | 8 |
| Total Cites to Single Authored Papers | 69 | 70 |
| Number of Single+First Authored Papers | 30 | 30 |
| Total Cites to Single+First Authored Papers | 124 | 128 |
| Number of Single+First+Last Authored Papers | 106 | 106 |
| Total Cites to Single+First+Last Authored Papers | 323 | 400 |
| Composite Score | 2 | 3 |
| Number of Distinct Citing Papers | 400 | 462 |
| Ratio of Total Citations to Distinct Citing Papers | 1.29 | 1.40 |
| Self-Citation Percentage |
20.49%
|
|
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